List your company

Traveling Salesperson Problem on TSP N=500 Generalization (128 instances)

0Optimality GapConcorde
-1.44568.312218.0727.8278Jan 9, 2023Jul 30, 2023Feb 18, 2024Sep 7, 2024Mar 29, 2025Oct 17, 2025May 8, 2026

Evaluation results

MethodLinks
Concorde2023.01040—
BQ-transformer bs16decoding=beam search, beam size=16, backbone=Transformer2023.010.5515—
MoH-KGLSHeuristic Category=Improvement Heuristic, Local Search Strategy=KGLS2025.050.805—16.652
HMACEGPT-5.4 Evaluation=true2026.050.809—16.653
MCTS-AHD-KGLSHeuristic Category=Improvement Heuristic, Local Search Strategy=KGLS2025.050.867—16.662
CORALGPT-5.4 Evaluation=true2026.050.882—16.665
MoH-GLSHeuristic Category=Improvement Heuristic, Local Search Strategy=GLS2025.050.936—16.674
EoHGPT-5.4 Evaluation=true2026.050.956—16.677
HSEvo-KGLSHeuristic Category=Improvement Heuristic, Local Search Strategy=KGLS2025.050.958—16.678
ReEvo-KGLSHeuristic Category=Improvement Heuristic, Local Search Strategy=KGLS2025.050.976—16.681
EoH-GLSHeuristic Category=Improvement Heuristic, Local Search Strategy=GLS2025.051.176—16.714
BQ-transformer Gdecoding=greedy, backbone=Transformer2023.011.1855—
HSEvo-GLSHeuristic Category=Improvement Heuristic, Local Search Strategy=GLS2025.051.266—16.729
ReEvo-GLSHeuristic Category=Improvement Heuristic, Local Search Strategy=GLS2025.051.344—16.741
DIFUSCO G+2opt*decoding=greedy2023.012.44—
Att-GCN+MCTS*2023.012.546—
OR-ToolsHeuristic Category=Baseline2025.054.479—17.259
OR-ToolsGPT-5.4 Evaluation=false2026.054.479—17.259
OR-Tools2023.014.8931—
BQ-perceiver Gdecoding=greedy, backbone=Perceiver2023.015.228—
MDAM bs50beam size=502023.019.8813—
SGBS (10,10)search parameters=(10,10)2023.0111.4220—
MoHHeuristic Category=Constructive Heuristic2025.0514.224—18.869
MoHGPT-5.4 Evaluation=false2026.0514.224—18.869
EoHHeuristic Category=Constructive Heuristic2025.0515.196—19.029
EoHGPT-5.4 Evaluation=false2026.0515.196—19.029
ReEvoHeuristic Category=Constructive Heuristic2025.0515.232—19.035
ReEvoGPT-5.4 Evaluation=false2026.0515.232—19.035
MCTS-AHDHeuristic Category=Constructive Heuristic2025.0515.24—19.036
MCTS-AHDGPT-5.4 Evaluation=false2026.0515.24—19.036
DIMES RL+S*search=true2023.0116.071—
AM bs1024beam size=10242023.0117.988—
FunsearchHeuristic Category=Constructive Heuristic2025.0518.242—19.531
FunsearchGPT-5.4 Evaluation=false2026.0518.242—19.531
HSEvoHeuristic Category=Constructive Heuristic2025.0518.349—19.55
HSEvoGPT-5.4 Evaluation=false2026.0518.349—19.55
POMO augx8augmentation=x82023.0120.181—
Sym-NCO s100samples=1002023.0121.6413—
Nearest NeighborHeuristic Category=Baseline2025.0525.252—20.691
Nearest NeighborGPT-5.4 Evaluation=false2026.0525.252—20.691
TransTSP bs1024beam size=10242023.0136.149—
ConcordeHeuristic Category=Baseline2025.05——16.519
ConcordeGPT-5.4 Evaluation=false2026.05——16.519